Вашего контента просто недостаточно для заполнения всего окна просмотра.Вы можете разместить свой нижний колонтитул абсолютно.Или добавьте минимальную высоту вашему контенту.Или используйте flexbox, чтобы увеличить область содержимого.
Вот ручка, на которой можно поиграть с решением flexbox: https://codepen.io/Sixl/pen/zMbYxL
Для новой оболочки main
есть флекс-растениесодержание.
body,
html {
height: 100%;
margin: 0;
font-family: 'Merriweather', serif;
}
body {
background: #136a8a;
/* fallback for old browsers */
background: -webkit-linear-gradient(to right, #267871, #136a8a); /* Chrome 10-25, Safari 5.1-6*/
background: linear-gradient(to right, #267871, #136a8a);
}
.container {
display: flex;
flex-flow: column wrap;
height: 100vh;
}
main {
flex-grow: 1;
padding-top: 40px
}
nav {
background-color: #16222A;
position: fixed;
top: 0;
left: 0;
right: 0;
display: flex;
justify-content: space-between;
align-items: center;
font-size: 160%;
}
#menu-bar {
padding: 1.2%;
color: #999999;
}
.logo-container {
width: 20%;
}
.logo-container img {
max-width: 100%;
margin: 0 auto;
}
.meal-container {
background-color: white;
width: 90%;
margin: 0 auto;
margin-top: 1.3em;
padding: 0.5em;
display: flex;
justify-content: space-between;
box-shadow: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23);
}
.meal-img {
width: 40%;
}
.meal-img img {
max-width: 100%;
}
.meal-description {
display: flex;
flex-direction: column;
align-items: flex-start;
justify-content: space-between;
width: 50%;
}
#meal-parent-container {
display: flex;
flex-direction: column;
padding-top: 5%;
}
.time,
.special-offers {
background-color: white;
width: 90%;
margin: 0 auto;
margin-top: 1.3em;
padding: 0.5em;
box-shadow: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23);
text-align: center;
}
.special-offers {
margin-bottom: 1.3em;
}
button {
padding: 0.8em;
color: white;
background: #16222A;
border: 0px;
}
footer {
background: #16222A;
padding: 1em;
text-align: center;
color: white;
font-size: 120%;
}
@media screen and (min-width:410px) {
.time {
margin-top: 1.5em;
}
.meal-description {
padding: 0.7em;
}
.logo-container {
width: 18%;
}
}
@media screen and (min-width:430px) {
.time {
margin-top: 1.8em;
}
.meal-description {
padding: 1em;
}
.logo-container {
width: 16%;
}
}
@media screen and (min-width:500px) {
.time {
margin-top: 2.3em;
width: 70%;
}
.meal-container {
width: 80%;
}
.meal-img {
max-width: 37%;
}
.meal-description {
padding: 1.2em;
}
.special-offers {
width: 80%;
}
.logo-container {
width: 16%;
}
}
@media screen and (min-width:600px) {
#meal-parent-container {
flex-direction: row;
flex-wrap: wrap;
}
.meal-container {
width: 45%;
}
.time {
margin-top: 2.6em;
}
.logo-container {
width: 12%;
}
}
@media screen and (min-width:800px) {
.time {
margin-top: 2.9em;
}
.logo-container {
width: 10%;
}
}
@media screen and (min-width:900px) {
.time {
width: 60%;
}
.special-offers {
width: 70%;
}
.logo-container {
width: 8%;
}
}
@media screen and (min-width:1000px) {
.time {
width: 50%;
}
.special-offers {
width: 60%;
}
.logo-container {
width: 6%;
}
}
<div class="container">
<nav>
<div class='logo-container'>
<img src='https://image.ibb.co/iMNFxy/noknoknok.png' alt='application logo'>
</div>
<i class="fa fa-bars" id='menu-bar'></i>
</nav>
<main>
<div class='time'>
<p>Monday 26 November 2018</p>
<p>TODAY'S OFFERS</p>
</div>
<div id=meal-parent-container>
<div class='meal-container'>
<div class='meal-img'>
<img src='https://image.ibb.co/kuVDjd/noknok.png' alt='picture of jollof rice'>
</div>
<div class=meal-description>
<span>Jollof Rice with Chicken</span>
<button>
<span class='order'>Order Now</span>
</button>
</div>
</div>
<div class='meal-container'>
<div class='meal-img'>
<img src='https://image.ibb.co/kuVDjd/noknok.png' alt='picture of jollof rice'>
</div>
<div class=meal-description>
<span>Fried Plantain with Beans</span>
<button>
<span class='order'>Order Now</span>
</button>
</div>
</div>
<div class='meal-container'>
<div class='meal-img'>
<img src='https://image.ibb.co/kuVDjd/noknok.png' alt='picture of jollof rice'>
</div>
<div class=meal-description>
<span>Plain Rice with Chicken</span>
<button>
<span class='order'>Order Now</span>
</button>
</div>
</div>
<div class='meal-container'>
<div class='meal-img'>
<img src='https://image.ibb.co/kuVDjd/noknok.png' alt='picture of jollof rice'>
</div>
<div class=meal-description>
<span>Banku With Tilapia</span>
<button>
<span class='order'>Order Now</span>
</button>
</div>
</div>
<div class='meal-container'>
<div class='meal-img'>
<img src='https://image.ibb.co/kuVDjd/noknok.png' alt='picture of jollof rice'>
</div>
<div class=meal-description>
<span>Fufu with Light Soup</span>
<button>
<span class='order'>Order Now</span>
</button>
</div>
</div>
</div>
<div class='special-offers'>
<p>Special Offers</p>
</div>
</main>
<footer>
Made with love © 2018
</footer>
</div>